Important question. Many people don't like their jobs or lives but don't know how to change it. Often the problems are not only financial in nature. But having the freedom to do what you want without having to worry about money is exciting to me (and many others). However, my main issue with FIRE is that it focuses too much on reducing expenses and living on index fund withdrawals. I would rather retire on cash flow from invested assets (like real estate) and ensure I have decent income to travel and do other fun things. Many people avoid FIRE because they don't want to live like a monk in a van down by the river!